<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 用户列表主体 -->
    <el-card>
      <!-- 搜索区域 -->
      <el-row :gutter="25">
        <el-col :span="10">
          <el-input placeholder="请输入搜索内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表 -->
      <el-table :data="userList" border stripe>
        <!-- 索引列 -->
        <el-table-column type="index"></el-table-column>
        <el-table-column label="用户名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="密码" prop="password"></el-table-column>
        <el-table-column label="角色" prop="role"></el-table-column>
        <el-table-column label="状态" prop="state">
          <!-- 作用域插槽 -->
          <template slot-scope="scope">
            <!-- 状态使用switch开关 -->
            <el-switch v-model="scope.row.state" @change="changeState(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <!-- 自定义插槽 -->
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="deleteUser(scope.row.id)"
            ></el-button>
            <el-tooltip effect="dark" content="分配权限" placement="top-start" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页组件 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pageNo"
        :page-sizes="[1, 2, 5, 10, 20]"
        :page-size="queryInfo.pageSize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 新增用户区域 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
      </el-form>
      <!-- 按钮区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取消</el-button>
        <el-button type="primary" @click="addUser">确定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户 -->
    <el-dialog title="修改用户信息" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="editForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取消</el-button>
        <el-button type="primary" @click="editUserInfo">确定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  created() {
    this.getUserList();
  },
  data() {
    return {
      // 查询信息实体
      queryInfo: {
        query: "",
        pageNo: 1,
        pageSize: 10
      },
      userList: [],
      total: 0,
      addDialogVisible: false,
      editDialogVisible: false,
      // 表单属性收集
      addForm: {
        username: "",
        password: "",
        email: ""
      },
      editForm: {},
      // 表单验证
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 5,
            max: 8,
            message: "用户名长度在5到8个字符之间",
            trigger: "blur"
          }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 8,
            message: "密码长度在6到8个字符之间",
            trigger: "blur"
          }
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { min: 5, max: 15, message: "请输入正确邮箱地址", trigger: "blur" }
        ]
      },
      editFormRules: {
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 8,
            message: "密码长度在6到8个字符之间",
            trigger: "blur"
          }
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { min: 5, max: 15, message: "请输入正确邮箱地址", trigger: "blur" }
        ]
      }
    };
  },
  methods: {
    // 获取用户列表
    async getUserList() {
      const { data: res } = await this.$http.post(
        "/user/getList",
        this.queryInfo
      );
      this.userList = res.users;
      this.total = res.total;
    },
    handleSizeChange(newSize) {
      this.queryInfo.pageSize = newSize;
      this.getUserList();
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pageNo = newPage;
      this.getUserList();
    },
    // 修改用户状态
    async changeState(row) {
      const { data: res } = await this.$http.put(
        `/user/updateState?id=${row.id}&state=${row.state}`
      );
      if (res != "success") {
        row.id = row.id;
        return this.$message.error("操作失败！");
      }
      this.$message.success("操作成功！");
    },
    // 关闭
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    // 用户添加
    addUser() {
      // 验证
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return;
        // 添加
        const { data: res } = await this.$http.post(
          "/user/addUser",
          this.addForm
        );
        if (res != "success") {
          return this.$message.error("操作失败！");
        }
        this.$message.success("操作成功！");
        this.addDialogVisible = false;
        this.getUserList();
      });
    },
    // 删除用户
    async deleteUser(id) {
      const confirmResult = await this.$confirm("是否确认删除用户", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning"
      }).catch(err => err);
      if (confirmResult != "confirm") return this.$message.info("已取消删除！");
      const { data: res } = await this.$http.delete(
        "/user/deleteUser?id=" + id
      );
      if (res != "success") return this.$message.error("删除失败！");
      this.$message.success("删除成功！");
      this.getUserList();
    },
    // 显示窗口
    async showEditDialog(id) {
      const {data:res} = await this.$http.get('/user/getUser?id='+id);
      this.editForm = res;
      this.editDialogVisible = true;
    },
    // 关闭窗口
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
      this.editDialogVisible = false;
    },
    // 修改用户
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if(!valid) return;
        const {data:res} = await this.$http.put('/user/editUser',this.editForm);
        if(res != 'success') return this.$message.error('修改失败！');
        this.$message.success('修改成功！');
        this.editDialogVisible = false;
        this.getUserList();
      })
    }
  }
};
</script>

<style lang="less" scoped>
.el-breadcrumb {
  margin-bottom: 15px;
  font-size: 17px;
}
</style>